The reef subregions were created by expert opinion (Phil Kramer, Patricia Kramer, and John Knowles) using information on the orientation of reefs around each island, the benthic habitat, and ocean depth. The 200m contour was extracted from the 2014 GEBCO bathymetric data. From there contiguous shelf sections around each island was divided into subregions based on the above criteria/reef location. For the CMBP countries, the subregions were taken from the NOAA shelf unit layer.
A coastline is the area where land meets the sea or ocean. In the case of GIS, it is represented as a line or polygon which forms the boundary between the land and the ocean or a lake. Its use as a base layer allows for the delineation of islands and in some cases political boundaries like an entire country. This file is a mosaic of the highest resolution coastline files available for the 6 members of the Organization of Eastern Caribbean States under the ECMMAN project as well as the 3 additional countries participating in the CMBP, stewarded by the Nature Conservancy's Caribbean Program. See Supplemental Information for country specifics.
Proportion of reef surface covered by live stony coral. Considers coral cover, coral promoters, competitor ratio, coral condition (size, recent mortality, bleaching, and disease), also species richness.
This file shows the 6 country level charts and data as well as the 1 regional chart. Coral reef health is measured using four indicators: coral cover, fleshy macroalgae, herbivorous fish and commercial fish. The Coral Reef Health Index (RHI) is the average of the four indicators. Each indicator is assessed at the country and regional level for a given year resulting in a score from 0 and 5 and a grade ranging from Very Good to Critical.